CH^NOBRYTTUS WARMOUTH BASS 



245 



Genus CHiENOBRYTTUS Gill 



(WARMOUTH bass) 



This genus has the form and dentition of Amhloplites, with the opercle 

 convex at the angle as in Lepomis, not ending in two points; preopercle 

 entire; mouth large; a supplemental maxillary present; dorsal spines 10 

 and anal spines 3, as in Lepomis; caudal emarginate; scales weakly 

 ctenoid. United States, east of the Rockies; one species. 



X 



Fig. 59 



CH^NOBRYTTUS GULOSUS (Cuvier & Valenciennes) 



(WARMOUTH bass) 



Cuvier & Valenciennes, 1829, Hist. Xat. Poiss., Ill, 498 (Pomotis). 

 J. & G., 468; M. V., 115; B., I, 13; J. & E., I, 992; X., 37; J., 45; F.. 69; F. F., I. 

 3, 44; L., 23. 



Length 6 to 8 inches; body robust, elongate, becoming much deeper 

 with age; profile only slightly angled at nape; depth 2 to 2.6; greatest 

 width 2 to 2 . 5 in greatest depth ; depth of caudal peduncle 1 . 2 to 1 . 6 in 

 its length. Color olivaceous to grayish, clouded, mottled, and some- 

 times indistinctly barred, with slate to bluish black; sides with golden 

 and emerald reflections, producing over the ground colors a rich golden 

 brown effect; breast and belly greenish to yellowish, sprinkled with dark 

 dots and finely dusted with gold or emerald ; four or five light grayish 

 to lavender streaks (sometimes reddish) running from eye to back of 

 opercle; snout, cheeks, and opercles sprinkled with dusky and finely 

 punctulate with gold; forehead a moldy velvety-slate, characteristic of 

 this fish; bony portion of opercular flap ver\' dark, brownish in front to 

 bluish behind, the membranous portion copperv^ above to lavender be- 

 low; a narrow line of crimson about pupil; rest of iris crimson to purplish 

 with streaks of emerald above and below; dorsal and anal fins light 



(17) 



